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Java > Open Source Codes > org > apache > derby > impl > store > access > UTF


1 /*
2
3    Derby - Class org.apache.derby.impl.store.access.UTF
4
5    Licensed to the Apache Software Foundation (ASF) under one or more
6    contributor license agreements. See the NOTICE file distributed with
7    this work for additional information regarding copyright ownership.
8    The ASF licenses this file to you under the Apache License, Version 2.0
9    (the "License"); you may not use this file except in compliance with
10    the License. You may obtain a copy of the License at
11
12       http://www.apache.org/licenses/LICENSE-2.0
13
14    Unless required by applicable law or agreed to in writing, software
15    distributed under the License is distributed on an "AS IS" BASIS,
16    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17    See the License for the specific language governing permissions and
18    limitations under the License.
19
20  */
21
22 package org.apache.derby.impl.store.access;
23
24 import org.apache.derby.iapi.services.sanity.SanityManager;
25 import org.apache.derby.iapi.types.DataValueDescriptor;
26 import org.apache.derby.iapi.types.UserType;
27
28 /**
29   A class that is used to store java.lang.Strings and provide
30   ordering capability.
31
32   @see org.apache.derby.iapi.services.io.FormatIdOutputStream
33  **/
34
35 public class UTF extends UserType
36 {
37     public UTF()
38     {
39     }
40
41     public UTF(String JavaDoc value)
42     {
43         super(value);
44     }
45
46     /*
47      * The following methods implement the Orderable protocol.
48      */
49
50     public int compare(DataValueDescriptor other)
51     {
52         if (SanityManager.DEBUG)
53             SanityManager.ASSERT(other instanceof UTF);
54
55         UTF arg = (UTF) other;
56
57         return ((String JavaDoc) getObject()).compareTo((String JavaDoc) arg.getObject());
58
59     }
60 }
61
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